uiptlatica. atercer dia. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 157v. col. 2. Thanks to Joe Campbell for providing the transcription.
Frances Karttunen:
HUĪPTLATICA on the third day, every third day / a tercer día (M), cada tercer día (C) [(4)Cf.107r]. See HUĪPTLA.
HUĪCTLATICA See HUĪPTLATICA. Frances Karttunen, An Analytical Dictionary of Nahuatl (Norman: University of Oklahoma Press, 1992), 90.